Lengths of crabs from Atlantic coast estu- 

 aries were compared. Chesapeake Bay crabs 

 were among the largest but did not equal 

 those from Delaware Bay. 

 1958a. Crabs retain dye from stained food. 

 Maryland Tidewater News, vol. 14, No. 2, p. 

 6,8. 



Small blue crabs were fed fish stained with 

 Neutral Red to indicate if dye is an 

 effective method of marking crabs. After 6 

 weeks a red color was concentrated in the 

 under surface behind the mouth. The maxi- 

 mum length of time the mark will be 

 retained will be investigated. 

 1958b. The migration of adult female blue 

 crabs, Callinectes sapidus Rathbun, in Chinco- 

 teague Bay and adjacent waters. Journal of 

 Marine Research, vol. 16, No. 3, p. 180-191. 

 Most of 105 female recaptures were south 

 of the release points (three moved north- 

 ward). Only two were recaptured outside 

 the area. Factors that may influence move- 

 ments, such as a salinity gradient, are 

 discussed. 



1959. Mussels muscling in. Maryland Tide- 

 water News, vol. 15, No. 2, p. 7. 



A blue crab had a total of 213 Mytilus 

 edulis (3/4 to 1-1/2 inches long) attached. 

 Possibility of using attached organisms as 

 tags to determine migrations. 



1960. A megalops of the blue crab, Cal- 

 linectes sapidus, in the Patuxent River, Mary- 

 land. Chesapeake Science, vol. 1, No. 2, p. 

 110. 



This record extends the northward intru- 

 sion of the megalops stage in the Chesa- 

 peake Bay about 65 nautical miles. Salinity 

 was 17.1 p.p.t. 



Cargo, David G., and Lewis Eugene Cronin. 



1951. The Maryland crab industry, 1950. 



Chesapeake Biological Laboratory, Solomons, 



Md., Publication No. 92, 23 p. 



Quantity and value of blue crab production 

 by month, gear, and area. Life history and 

 feeding habits are reviewed. Conservation 

 practices discussed were release of "buck- 

 ram" crabs, not holding shedder crabs for 

 long periods before they are ready to molt, 

 and protection of egg-bearing females. 



Carley, D. H. 



1968. Economic analysis of the commercial 



fishery industry of Georgia. University of 

 Georgia, College of Agriculture Experiment 

 Stations, Research Bulletin No. 37, 92 p. 

 Analysis of the blue crab fishery, catch, 

 and processed products in Georgia. The 

 blue crab makes up 50 to 60 percent of the 

 total of all species caught and 8 to 15 

 percent of the total value of all species. 



Carley, D. H., and C. M. Frisbie. 



1968a. The blue crab, oyster, and finfish 

 fisheries of Georgia— an economic evaluation. 

 Georgia Game and Fish Commission, Marine 

 Fisheries Division, Contribution series No. 12, 

 13 p. 



Production and value of the crab fishery of 



Georgia, structure of selling, fishing effort, 



and prices received by fishermen. Low 



prices for crabs have caused little incentive 



for investment in gear. Crab production 



decreased 46 percent from 1960 to 1966. 



1968b. The commercial fishing industry of 



Georgia— an economic evaluation. Georgia 



Game and Fish Commission, Marine Fisheries 



Division, Contribution series No. 7, 13 p. 



Blue crabs rank second in value of Georgia 



landings. Investment of the fishery for 



crabs and the extent of wholesaling and 



processing in Georgia. 



Carlisle, David B., and Sir Francis Knowles. 



1959. Endocrine control in crustaceans. 



Cambridge University Press, New York and 



London, 120 p. 



References to studies on blue crab by other 

 investigators include endocrine influence 

 on carbohydrate metabolism, neuro- 

 secretory fibres of the sinus gland, termina- 

 tion of growth, and endocrine mechanism 

 for controlling level of blood sugar. 



Carpenter, James H., and David G. Cargo. 



1957. Oxygen requirement and mortality of 

 the blue crab in the Chesapeake Bay. Chesa- 

 peake Bay Institute of The Johns Hopkins 

 University, Technical Report No. 13, 22 p. 

 Low oxygen concentrations were investi- 

 gated in the field and laboratory as a 

 possible cause of summer mortalities 

 (1951-53) of blue crabs in commercial 

 pots. Conditions are unfavorable for 

 holding crabs in pdts for 24 hours or more 



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